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81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
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/***************************************************************************
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qgsbdfbase.h - Dbase IV Header
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--------------------------------------
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Date : 25-Dec-2003
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Copyright : (C) 2003 by Gary E.Sherman
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email : sherman at mrcc.com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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/* $Id$ */
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// Dbase header structure
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struct DbaseHeader {
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unsigned char valid_dbf;
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char year;
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char month;
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char day;
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long num_recs;
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short size_hdr;
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short size_rec;
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char reserved[3];
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char lan[13];
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char reserved2[4];
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};
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// Field descriptor array - defines a field and its attributes (type,
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// length, etc.
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struct FieldDescriptorArray {
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char field_name[11];
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char field_type;
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long field_addr; /* used only in memory */
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unsigned char field_length;
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unsigned char field_decimal;
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char reserved[2];
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char work_area;
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char lan[2];
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char set_fields;
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char reserved2[8];
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};
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// Typedefs
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typedef struct FieldDescriptorArray Fda;
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typedef struct DbaseHeader DbH;
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// Field Array class
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class DbaseFieldArray {
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public:
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DbaseFieldArray(int numberOfFields);
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void addField(char *name, char type, unsigned char length,
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unsigned char decimal);
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int getNumFields();
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Fda *getField(int index);
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private:
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struct FieldDescriptorArray *fda;
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unsigned int fieldCount;
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int numFields;
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};
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// Dbase file class (incomplete implementation)
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class DbaseFile {
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public:
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DbaseFile(char *fileName, int numRecords, int recordSize, DbaseFieldArray &fda);
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void writeHeader();
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void writeFieldDescriptors();
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void writeRecord(const char *data);
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void closeFile();
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struct DbaseHeader header;
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private:
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char * fileName;
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int numRecords;
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int recordSize;
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DbaseFieldArray fieldArray;
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long pos;
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bool firstRecord;
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};
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